Finding the Fourth Proportional to 2,020.02, 3,029.49 and 865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.02 : 3,029.49 = 865.50 : x
2. Step 2: Convert to fraction form
   2,020.02/3,029.49 = 865.50/x
3. Step 3: Cross multiply
   2,020.02x = 3,029.49 × 865.50
4. Step 4: Simplify right side
   2,020.02x = 2,622,023.60
5. Step 5: Solve for x
   x = 2,622,023.60/2,020.02
6. Step 6: Final answer
   x = 1,298.02